Josephson diode effect derived from short-range coherent coupling

Abstract

Superconducting devices with broken time-reversal and spatial-inversion symmetries can exhibit novel superconducting phenomena. The observation of superconducting diode effects, which is applicable for dissipationless rectification, provides information on the breaking of such symmetries. We experimentally study a Josephson junction (JJ) coupled to another adjacent JJ as a new system exhibiting the superconducting diode effect. We demonstrate that the observed superconducting diode effect can be controlled non-locally based on the phase difference with the adjacent JJ. These results indicate that the time-reversal and spatial-inversion symmetries of a JJ are broken by the coherent coupling to an adjacent JJ, and this enables the engineering of novel superconducting phenomena mediated by coherent coupling among JJs and development of their applications for superconducting diode devices.

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Cited by in corpus (26)

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• Field-free Josephson diode effect in altermagnet/normal metal/altermagnet junctions
• Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction
• Phase-dependent Andreev molecules and superconducting gap closing in coherently coupled Josephson junctions
• Demonstration of nonlocal Josephson effect in Andreev molecules
• Engineering of anomalous Josephson effect in coherently coupled Josephson junctions
• Magnetic-field-free nonreciprocal transport in graphene multi-terminal Josephson junctions
• Strong nonlocal tuning of the current-phase relation of a quantum dot based Andreev molecule
• Direct microwave spectroscopy of Andreev bound states in planar Ge Josephson junctions
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• Theory of universal diode effect in three-terminal Josephson junctions
• On-off switch and sign change for non-local Josephson diode in spin-valve Andreev molecules
• Non-Hermitian superconducting diode effect
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• Fermionic Quantum Simulation on Andreev Bound State Superlattices
• Self-heating effects and switching dynamics in graphene multiterminal Josephson junctions
• Josephson diode effect in nanowire-based Andreev molecules
• Electric Control of Polarity in Spin-Orbit Josephson Diode
• Nonequilibrium Andreev resonances in ballistic graphene Andreev interferometers
• Superconducting Diode Effect in Double Quantum Dot Device
• Pressure induced magnetic-field-free superconducting diode effect in NbSe2 flake
• Spin splitting, Kondo correlation and singlet-doublet quantum phase transition in a superconductor-coupled InSb nanosheet quantum dot
• Andreev molecules at distance
• Enhanced Andreev Reflection in Flat-Band Systems: Wave Packet Dynamics, DC Transport and the Josephson Effect
• Giant and robust Josephson diode effect in multiband topological nanowires